In Torrance, Affleck stars as a former all-star basketball player who loses his career and his wife amid his battle with addiction. Through his struggle to get clean, he attempts to reclaim his life by becoming the coach of a high school basketball team.

Affleck, who is also serving as a producer on the upcoming drama, looked healthy and happy while chatting with co-star Janina Gavankar, who plays his ex-wife in the film.

"Battling any addiction is a lifelong and difficult struggle," he wrote. "Because of that one is never really in or out of treatment. It is a lifelong commitment. I am fighting for myself and my family.

"As I’ve had to remind myself, if you have a problem, getting help is a sign of wisdom and strength, not weakness or failure," he continued. "With acceptance and humility, I continue to avail myself with the help of so many people and I am grateful to all those who are there for me. I hope down the road I can offer an example to others who are struggling."